package src.com.wqt;

/**
 * @ProjectName: ybxy
 * @Titile: TestLambda
 * @Author: wqt
 * @Description: TODO
 */

public class TestLambda {

    public static void main(String[] args) {
        testA();
        testC();
        testB();
        testD();
    }


    public static void testA() {
        A a1 = new A() {
            @Override
            public void show(String name, int age) {
                System.out.println(name + "," + age);
            }
        };
        A a2 = (name, age) -> System.out.println(name + "," + age);
        a2.show("张三", 18);

        A a3 = TestLambda::show2;
        a3.show("李四", 20);

        TestLambda testLambda = new TestLambda();
        A a4 = testLambda::show3;
        a4.show("王五", 35);
    }

    public static void show2(String name, int age) {
        System.out.println(name + "," + age);
    }

    public void show3(String name, int age) {
        System.out.println("show2:" + name + "," + age);
    }


    public static void testB() {
        B b1 = new B() {
            @Override
            public void show(String name) {
                System.out.println(name);
            }
        };
        B b2 = name -> System.out.println(name);
        B b3 = System.out::println;
        b3.show("Osborn");
    }


    public static void testC() {
        C c1 = new C() {
            @Override
            public String show(String name) {
                return "name = " + name;
            }
        };
        System.out.println(c1.show("一一"));
        C c2 = name -> "name = " + name;
        System.out.println(c2.show("小梨"));
    }

    public static void testD() {
        D d1 = new D() {
            @Override
            public int max(int a, int b) {
                return Math.max(a, b);
            }
        };
        D d2 = (a, b) -> a < b ? a : b;

        D d3 = Math::max;
        int max = d3.max(1, 2);
        System.out.println(max);
    }
}
